update_parcels_metadata.py

import re

import arcpy

SDE = r'C:\temp\parcels_metadata_fix_1.gdb'
BASIC_SUMMARY = 'GIS mapping data representing parcel boundaries.'
LIR_SUMMARY = 'GIS mapping data representing parcel boundaries and county tax roll attributes.'
BASIC_UPDATE_INFO = 'Update information can be found within the layer’s attributes and in a table on the <a href="https://gis.utah.gov/data/cadastre/parcels/#UtahParcels">Utah Parcel Data webpage</a> under Basic Parcels.'
LIR_UPDATE_INFO = 'Update information can be found within the layer’s attributes and in a table on the <a href="https://gis.utah.gov/data/cadastre/parcels/#UtahParcels">Utah Parcel Data webpage</a> under LIR Parcels.'
LAST_UPDATE_REGEX = re.compile(r'(<P><SPAN>)?Last Update: .*\d(<\/SPAN><\/P>)?', re.MULTILINE | re.IGNORECASE)

print('getting feature classes...')
arcpy.env.workspace = SDE
for feature_class in arcpy.ListFeatureClasses('*Parcels_*'):
  print(f'processing: {feature_class}')
  is_lir = feature_class.find('LIR') > -1

  metadata = arcpy.metadata.Metadata(feature_class)

  if is_lir:
    summary = LIR_SUMMARY
    update_info = LIR_UPDATE_INFO
  else:
    summary = BASIC_SUMMARY
    update_info = BASIC_UPDATE_INFO
    metadata.upgrade('ESRI_ISO')

  #: remove "Last Update: ..."
  metadata.summary = re.sub(LAST_UPDATE_REGEX, '', metadata.summary)
  metadata.description = re.sub(LAST_UPDATE_REGEX, '', metadata.description)

  #: add old summary to the top of the description
  if is_lir:
    metadata.description = f'{metadata.summary}\n\n{metadata.description}'

  #: add new update info to beginning of description
  metadata.description = f'<p>{update_info}</p>{metadata.description}'

  #: update summary to new generic version
  metadata.summary = summary

  metadata.save()